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July 30, 2014

July 30, 2014

Posted by **ellen** on Tuesday, October 25, 2011 at 7:32pm.

- physics -
**drwls**, Tuesday, October 25, 2011 at 7:37pmCheck answers to "related questions" below

- uncc -
**Anonymous**, Thursday, April 19, 2012 at 10:38amThe half-life of 234U, uranium-234, is 2.52 105 yr. If 98.5% of the uranium in the original sample is present, what length of time (to the nearest thousand years) has elapsed?

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